//字面量 json
var student={
    int:10001,
    name:"张三",
    scores:[
        {subject:"html", score: 90},
        {subject:"JS", score: 90}
    ]
}
//function
function Student(id,name){
    this.id =id;
    this.name =name;
    this.scores = [
        {subject:"html", score: 90},
        {subject:"JS", score: 90}
    ]
}
Student.prototype.sex="男";
Student.prototype.eat = function(food){
    console.log("吃"+food)
}
var stu =new Student(1000,"张三");
stu.eat("米饭");
console.log(stu.sex)


//object
var stu2 = new Object();
stu2.id =1000;
stu2.name ="张三";
stu2.scores =[
    {subject:"html", score: 90},
        {subject:"JS", score: 90}
]



function Student(id,name){
    this.id =id;
    this.name =name;
   
this.eat =function (food){
    console.log("吃"+food)
    return this
},
this.sleep =function(){
    console.log("睡")
    return this
}

}

var stu =new Student(1001,"张三");
// stu.eat(" ");方法一
// stu.sleep();  


stu.eat(" ").sleep().eat("").sleep().eat("").sleep().eat("").sleep();
//方法二